Welcome to Bucaro TecHelp!

Bucaro TecHelp
Maintain Your Computer and Use it More Effectively
to Design a Web Site and Make Money on the Web

About Bucaro TecHelp About BTH User Agreement User Agreement Privacy Policy Privacy Site Map Site Map Contact Bucaro TecHelp Contact RSS News Feeds News Feeds

Network Interface Card (NIC)

A Network Interface Card (NIC), sometimes called a "network adapter" or "LAN adapter" is an expansion card that allows a PC to connect to a network. Though there are many different types of networks, PCs almost always use a NIC that interfaces to a wireless network or an Ethernet network.

Network Interface Card (NIC)
NIC with RJ45 connector port to
connect an Ethernet network cable.

Every NIC is identified on the network by a unique 48-bit serial number called a MAC (Media Access Control) address, which is stored in a ROM on the card. The MAC address is unique because NIC manufacturers purchase blocks of addresses from the IEEE (Institute of Electrical and Electronics Engineers).

In the past, if you wanted a PC to be able connect to a network, you needed to install a NIC. Today, most motherboards have Ethernet network circuitry built into the motherboard. However, if a PC needs multiple network interfaces, for example to have it function as a firewall or gateway.

More Computer Anatomy Articles:
• Understanding the Software Layers of a Computer
• Understanding Your Motherboard
• PC Keyboards
• All About Your Computer's BIOS
• SD (Secure Digital) Memory Card Basics
• How Does the CPU Cache Work?
• History of the QWERTY Keyboard
• Basic Computer Thermodynamics
• VIA Chipsets
• External Serial Advanced Technology Attachment (eSATA)

RSS Feed RSS Feed

Follow Stephen Bucaro Follow @Stephen Bucaro

Fire HD
[Site User Agreement] [Privacy Policy] [Site map] [Search This Site] [Contact Form]
Copyright©2001-2018 Bucaro TecHelp 13771 N Fountain Hills Blvd Suite 114-248 Fountain Hills, AZ 85268